Home / 21,746.20-32,570.70-17,858.20

Finding the Fourth Proportional to 21,746.20, 32,570.70 and 17,858.20

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Solution

The fourth proportional to 21,746.20, 32,570.70 and 17,858.20 is: 26,747.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,746.20 : 32,570.70 = 17,858.20 : x
  2. Step 2: Convert to fraction form
    21,746.20/32,570.70 = 17,858.20/x
  3. Step 3: Cross multiply
    21,746.20x = 32,570.70 × 17,858.20
  4. Step 4: Simplify right side
    21,746.20x = 581,654,074.74
  5. Step 5: Solve for x
    x = 581,654,074.74/21,746.20
  6. Step 6: Final answer
    x = 26,747.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.